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#ifndef OPENSCAD_CAMERA_H_
#define OPENSCAD_CAMERA_H_
// Cameras
// Variant design is similar to value.h/value.cc
// see GLView.cc / export_png.cc / openscad.cc for usage
#include <vector>
#include <Eigen/Geometry>
#include <boost/variant.hpp>
class NullCamera
{
public:
NullCamera(){}
};
class GimbalCamera
{
public:
GimbalCamera()
{
object_trans << 0,0,0;
object_rot << 35,0,25;
viewer_distance = 500;
}
void setup( std::vector<double> d )
{
assert( d.size() == 7 );
object_trans << d[0], d[1], d[2];
object_rot << d[3], d[4], d[5];
viewer_distance = d[6];
}
Eigen::Vector3d object_trans;
Eigen::Vector3d object_rot;
double viewer_distance;
};
class VectorCamera
{
public:
VectorCamera()
{
center << 0,0,0;
Eigen::Vector3d cameradir(1, 1, -0.5);
eye = center - 500 * cameradir;
// "up" not currently used
}
Eigen::Vector3d eye;
Eigen::Vector3d center; // (aka 'target')
Eigen::Vector3d up;
};
class Camera
{
public:
enum CameraType { NONE, GIMBAL, VECTOR };
typedef boost::variant<NullCamera, GimbalCamera, VectorCamera> CamVariant;
CamVariant value;
Camera() {}
CameraType type() { return static_cast<CameraType>(value.which()); }
};
#endif
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